CFP Field Survey & Data Collection 5

Question 1

A biologist is establishing permanent monitoring stations on a river. Which GPS datum should be recorded with coordinates to ensure long-term spatial accuracy across agencies?

Accepted Answer

WGS84

Answer

WGS84 is the global standard datum used by GPS satellites and widely accepted across agencies for spatial data compatibility.

Question 2

A seine haul in a prairie stream yields 200 fathead minnows, 15 green sunfish, and 5 largemouth bass. The Shannon diversity index (H') for this community would be:

Accepted Answer

Lower than a community with equal proportions of each species

Answer

H' is maximized when all species are equally abundant; dominance by one species (fathead minnow here) reduces diversity.

Question 3

During a boat electrofishing survey, fish are anesthetized and placed in a live well. To reduce stress and improve survival, which condition in the live well is most critical?

Accepted Answer

Adequate dissolved oxygen and cool water temperature

Answer

Adequate dissolved oxygen and cool temperatures minimize physiological stress and oxygen debt in stunned fish.

Question 4

A biologist calculates a Relative Weight (Wr) of 78 for a largemouth bass sample. This value indicates the population is:

Accepted Answer

Below average condition, suggesting poor forage availability or high density

Answer

Wr below 100 indicates fish weigh less than the standard for their length; values around 80 suggest poor condition.

Question 5

Which statistical test is most appropriate for comparing mean fish density (normally distributed) between two independent electrofishing stations?

Accepted Answer

Independent samples t-test

Answer

An independent samples t-test compares means of two independent, normally distributed groups.

(CFP) Certified Fisheries Professional Practice Test

(CFP) Certified Fisheries Professional Practice Test

CFP Field Survey & Data Collection 5